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Finding the Fourth Proportional to 185.24, 276.20 and 178.40

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Solution

The fourth proportional to 185.24, 276.20 and 178.40 is: 266.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    185.24 : 276.20 = 178.40 : x
  2. Step 2: Convert to fraction form
    185.24/276.20 = 178.40/x
  3. Step 3: Cross multiply
    185.24x = 276.20 × 178.40
  4. Step 4: Simplify right side
    185.24x = 49,274.08
  5. Step 5: Solve for x
    x = 49,274.08/185.24
  6. Step 6: Final answer
    x = 266.00

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.